Get An RPG-7 hint for Metal Gear Solid: Portable Ops

Want an RPG-7? Well you can get one at the Silo Entrance, to get it you need to go to the top right of the map, then there should be a bridge, get up to it (to do this just climb the ladder from that square building) and in front of you should be an item box, get it and you now have an RPG-7.